Boiler-tube cleaner.



e. w. WATSON. I BOILER TUBE CLEANER.

APPLICATION FILED DEC. 16, i915 Patemm May 8, 191?.

Emma

GLENN VT. WATSON, OF DETROIT,

MICHIGAN, A-SSIGNOE T0 JIADIOND PGVJEB SPE- CIA'LTY CQMPANY, 0F DETROIT, IKICHIGAN, A (JORPORA'LJN .OF IEICEIGAN.

BOILER-TUBE CLEANER.

To all whom it may concern:

Be it known that l, GLENNW. iVA'rsoN, a citizen of the United States of America, residing at Detroit, in the county of VV-ayne and State of Michigan, have invented certain new and useful Improvements in Boiler-Tube Cleaners, of which the following is a specification, reference being had therein to the accompanying drawings.

The invention relates to boiler tube cleaners of that type in which a steam discharge nozzle is rotatively adjusted to sweep a predetermined space with a jet discharged therefrom. The present invention comprises the novel construction of operating mechanism for rotatively adjusting the nozzle which insures a slow and steady movement thereof that will effect a thorough cleaning.

In the drawin s:

Figure 1 is a sectional side elevation showing a portion of a tubular boiler and my improved mechanism applied thereto; and

Fig. 2 is a front elevation.

A is a furnace wall, B are tubes within the furnace chamber and O is a rotative cleaner tube projecting through the furnace wall and having one or more laterally-projecting discharge nozzles D registering with spaces Mtween the tubes. E is the steam supply conduit outside of the furnace wall, which is connected with the rotative tube C by a laterallydeflected fitting .-or goose-neckF and a swivel G. H is gear mounted upon the rotative tube 0, and

a spur- I is a pinion in mesh with said gear, which is mounted upon a pin J secured to a boss K on the fitting F. L is a sheave or sprocket-wheel also mounted on the pin J and coupled to the pinion I. M is a bracketarm secured to a bearing N in the furnace wall in which the tube C is journaled and also connected to the inner end of the pin J forming an anchoring support for the same and the fitting F. O is a chain for engaging the sheave or sprocket by means of which it may be rotated from a distance.

With the construction as described, in operation, the rotation of the sheave L by the chain 0 will be transmitted through the step-down gearing formed by the pinion R and spur-gear Q to the rotative tube C, imparting to the latter a slow and steady movement. This will insure a thorough 4 Specification of Letters Patent.

Patented Eliay 8, 1917.

Application filed December 18, 1915. Serial No. 67,270.

cleaning of all the space swept by the jets from the nozzles D.

What I claim as my invention. is

1. The combination with a furnace wall, of a rotatively adjustable cleaner tube eX- tending' through said wall and provided with one or more jet nozzles, a supply conduit for said tube, a fitting for connecting said supply conduit with said tube having a swivel connection with the latter and includ ing a laterally deflected portion or gooseneclr, a spur-gear mounted on said tube, a pinion in mesh with said spur-gear having a journal bearing on thelaterally deflected portion of said fitting, and manually-operable means for rotating said'pinion to impart a slow and steady movement to said rotative tube.

2. The combination with a furnace Wall, of a rotative tube projecting through said wall and having one or more jet nozzles, a

supply conduit outside said wall, a fitting for connecting said supply conduit with said rotative tube having a swivel connection with the latter. and including a laterally deflected portion orgoose-neck, a spur-gear mounted on said rotative tube, a" pinion meshing with said spur-gear, a pin forming a journal for said pinion mounted in the laterally deflected portion of said fitting and projecting laterally therefrom, a sheave also journaled on said pin and coupled to said pinion, and a chain for rotating said sheave and imparting through the medium of said pinion and spur-gear a slow and steady rotation to said tube.

8. The combination with a furnace wall, of a rotative tube extending therethr ough having one or more jet nozzles at its inner end, a bearing for said tube in said furnace wall, a supply conduit outside of said wall, a fitting connecting said supply conduit with said rotative tube including a laterally-deflected'portion or goose-neck and a swivel connection for said rotative tube, a spurgear mounted on said rotative tube,'a pinion meshing with said spur-gear, a pin forming a journal bearing for said pinion mounted in a boss on said fitting, a sheave connected'to said pinion and also journaled on said pin, a chain for operating said sheave, and a bracket member connecting a bearingvin said furnace wall with said pin and forming an anchorage for said fittin 4;. The combination with a furnace wall,

of a rotatively adjustable cleaner tube extending through said wall and provided with one or more jet nozzles, a bearing for said tube in said furnace wall, a bracket arm projecting from said bearing, a gear mounted upon said tube outside of said wall, a pinion in mesh with said gear, a supply conduit having swivel connection with said 10 tube and having a portion return-bent in proximity to said pinion, and coaeting with said bracket arm to support the p1n10n,and means for rotai1n; said pinion.

In testnnony whereof I allix my signature Ill presence of two witnesses.

GLENN W. \VATSON.

\Yitnesses:

.l.\u| :s l. lmmn', lin'ilms Cumin)". 

